DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES: Tractor Implements  -- Tractor Attachments Implements 3ph Discussion Forum and Review DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES: Tractor Implements -- Tractor Attachments Implements 3ph Discussion Forum

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 02-06-2003, 07:09 Post: 48758
RONM
2003-02-06 00:00:00
Post: 48758
 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

I am looking at purchasing a subsoiler (used but in great condition). The person selling it says that it is for a Catagory 0 hitch but will fit a Catagory 1 hitch but I would have to get pins. I have a JD 950 with a Cat 1. What is the difference between Cat 0, Cat 1 and Cat 3? Sorry for the ignorance.
Any help will be appreciated. Thank you






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 02-06-2003, 09:06 Post: 48765
slowrev



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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

Here are the specs for cat 0 and 1 hitches.
CAT0 Top link pin dia=5/8"
draw pin dia =5/8"
lift arm spacing=20"

Cat1 Top link pin dia=3/4"
draw pin dia =7/8"
lift arm spcaing=26"






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 02-06-2003, 09:09 Post: 48766
DRankin

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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

The pins are smaller and the spacing is closer.

A Cat1 top link has a 3/4" hole and Cat0 has 5/8's.
I believe the bottom pins are reduced from 7/8's to 3/4's.

You will have to either drill out the smaller holes for your larger pins with a $40 drill bit and a really powerful drill or you can buy metal sleeves from any tractor supply that will allow use of the smaller pins with your Cat1 link ends.






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 02-06-2003, 09:13 Post: 48767
showcattle



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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

Also, the distance from the lower links to the top link is different between Cat0 and Cat1.

Cat0 is like 12" lower links to upper link
Cat1 is like 18" lower links to upper link

The geometry of the "triangles" between the two lower links and the upper link is different when comparing Cat0 and Cat1. If that makes sense. It's the best I can explain it.






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 02-06-2003, 09:55 Post: 48771
RONM
2003-02-06 00:00:00
Post: 48771
 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

Thanks for the info. What I am understanding is that with the use of sleeves (or drilling the subsoiler for larger pins), I can use the Cat 0 subsoiler after modifications? The smaller traingle will not make a difference? Will it affect performance? (am I loosing stability? meaning will I have to be more careful when I use the subsoiler because it will not have the larger triangle that a Cat 1 has?). or do I just have to figure if it is worth the $50.00 I will save to buy the sleeves or drill the holes larger or will it be too much aggrevation and just buy a Cat 1 subsoiler.
Thank you again.






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 02-06-2003, 10:29 Post: 48773
DRankin

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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

That is certainly a consideration: whether the dollars savings will be eaten up in adapting the tool to your tractor.

It may also be a smaller/lighter sub-soiler designed for less horsepower that may not stand up to your tractors weight and horsepower.

If you hit a big rock or a root with a 900 pound Cat0 tractor the whole thing comes to a stop. In the same circumstance with your 950 your might have a steel pretzel on your hands.






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 02-06-2003, 23:14 Post: 48824
RayMurphy



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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

As long as we're on the discussion of category's of 3ph. Does anyone know what size pins the larger tractors use for their cat 2 or is it 3 hitches?






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 02-07-2003, 08:03 Post: 48833
slowrev



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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

Cat 2 specs.
Top link pin dia=1"
Draw pin dia=1 1/8"
lift arm spacing= 32"

Cat 3 spec.
Top link pin dia= 1 1/4"
draw pin dia= 1 7/16"
lift arm spacing= 38"






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 02-14-2003, 22:27 Post: 49273
wchatoff



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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

what is the lift arm spacing? is that the 2 arms that go up and down on the 3 pt? when you measure the arm spacing is that between bars or from mounting hole to mounting hole? I ordered a New holland 906 post hole digger MED. DUTY AND I'M TRYING TO FIND OUT HOW TO TELL THE DIFFERENCE BETWEEN THE LIGHT DUTY AND MEDIUM THE SPECS SHOW THE SAME EXCEPT FOR THE CAT 1 AND 2
THANKS






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 02-15-2003, 05:46 Post: 49286
TomG

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 DIFFERENCE BETWEEN CAT 0 AND CAT 1 HITCHES

I could be wrong but I'd interpret the spacing as the distance between the lower-link arms at the pivot points. I guess it could be the max distance the lower links will spread, measured at the pinholes. I think the pin sizes are the main thing about 3ph CAT standards and the spacing is a looser standard.

Without knowing which specs are cited for the augers, I'd guess that the difference between medium and light duty is the HP rating of the gearboxes. Around here the ratings are more in terms of the max diameter auger they'll take. Mine is a 12" auger. Farmers tend to like 14" augers since they allow for more jigging when putting up pole barns. I expect that 14" augers would tend to be CAT II mounts since that what most farmers have.

The length of the booms also could be different--longer booms can dig deeper since they lift higher, but they take taller tractors since ground clearance becomes a problem. Longer boom s also take more 3ph power to lift and may bang the hitch around more--so it's a good idea to have a bigger tractor.

Some compacts can't take 12" augers due to ground clearance problems. Most augers have a set of three pinholes for mounting the boom to the yoke. The upper position gives more ground clearance but doesn't dig as deep. The upper mounts may be needed to put a 12" auger on some compacts.






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Discussion Boards > Active Subjects > Messages as Posted > Tractor Implements Forum

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